If you think you’ve been exposed to measles, do not show up at a clinic or hospital without calling first, Public Health — Seattle & King County said. To avoid possibly spreading measles, limit contact with others and wear a well-fitting mask if you need to go to a health care facility, the department said.

Seattle & King County confirmed a measles case in a King County infant, potentially exposed during recent international travel.

Public health officials have listed several locations in Seattle and the Eastside where the infected infant was present while contagious.